Display: LCD with backlight Sensor type: Humidity: precision capacitance sensor, temperature: thermistor (head) and type K thermocouple Measurement range: Humidity: 0%RH~100%RH; temperature: -20°C~60°C (-4°F ~140°F) Accuracy: range 5%~95%RH: ± 3.5%RH (at 23°C ± 5°C); range -20°C~60°C: ± 2.5°C; range -4°F~140°F: ± 3.5°F Response time: 180ms Sample rate: 2.5 times/second Polarity: Automatic, with negative polarity indication Overload indication: "OL" Resolution: 0.1%RH, 0.1°C, 0.1°F Operating conditions: 0~50°C (32~122°F); <80%RH non-condensing Storage conditions: -10°C~60°C (14~140°F); <80%RH non-condensing Auto power off: Device shuts down automatically if no key is pressed for 1r 15 min. Battery: 9V (6LR61) battery, included
Dimensions: 225 x 45 x 34mm Weight: 200g